[llvm-commits] [llvm] r82818 - in /llvm/trunk: include/llvm/Constants.h lib/VMCore/Constants.cpp

[Dan Gohman]

Author: djg
Date: Fri Sep 25 18:00:48 2009
New Revision: 82818

URL: http://llvm.org/viewvc/llvm-project?rev=82818&view=rev
Log:
Add a ConstantFP::getInf utility function for creating infinity ConstantFPs.

Modified:
    llvm/trunk/include/llvm/Constants.h
    llvm/trunk/lib/VMCore/Constants.cpp

Modified: llvm/trunk/include/llvm/Constants.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Constants.h?rev=82818&r1=82817&r2=82818&view=diff

==============================================================================
--- llvm/trunk/include/llvm/Constants.h (original)
+++ llvm/trunk/include/llvm/Constants.h Fri Sep 25 18:00:48 2009
@@ -258,6 +258,7 @@
   static Constant* get(const Type* Ty, const StringRef& Str);
   static ConstantFP* get(LLVMContext &Context, const APFloat& V);
   static ConstantFP* getNegativeZero(const Type* Ty);
+  static ConstantFP* getInf(const Type* Ty, bool negative = false);
   
   /// isValueValidForType - return true if Ty is big enough to represent V.
   static bool isValueValidForType(const Type *Ty, const APFloat& V);

Modified: llvm/trunk/lib/VMCore/Constants.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/VMCore/Constants.cpp?rev=82818&r1=82817&r2=82818&view=diff

==============================================================================
--- llvm/trunk/lib/VMCore/Constants.cpp (original)
+++ llvm/trunk/lib/VMCore/Constants.cpp Fri Sep 25 18:00:48 2009
@@ -436,6 +436,12 @@
   return Slot;
 }
 
+ConstantFP *ConstantFP::getInf(const Type *Ty, bool Negative) {
+  const fltSemantics &Semantics = *TypeToFloatSemantics(Ty);
+  return ConstantFP::get(Ty->getContext(),
+                         APFloat::getInf(Semantics, Negative));
+}
+
 ConstantFP::ConstantFP(const Type *Ty, const APFloat& V)
   : Constant(Ty, ConstantFPVal, 0, 0), Val(V) {
   assert(&V.getSemantics() == TypeToFloatSemantics(Ty) &&